peer-at-code-backend/src/dev/peerat/backend/routes/users/Register.java
2024-09-17 09:11:22 +02:00

104 lines
3.4 KiB
Java

package dev.peerat.backend.routes.users;
import static dev.peerat.framework.RequestType.POST;
import java.lang.reflect.Constructor;
import java.security.SecureRandom;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.Random;
import java.util.UUID;
import java.util.regex.Matcher;
import dev.peerat.backend.bonus.extract.RouteDoc;
import dev.peerat.backend.repository.DatabaseRepository;
import dev.peerat.backend.utils.FormResponse;
import dev.peerat.backend.utils.Mail;
import dev.peerat.framework.Context;
import dev.peerat.framework.HttpReader;
import dev.peerat.framework.HttpWriter;
import dev.peerat.framework.Injection;
import dev.peerat.framework.Route;
import dev.peerat.framework.utils.json.JsonMap;
public class Register extends FormResponse{
private DatabaseRepository databaseRepo;
private Map<String, String> playersWaiting;
private Mail mail;
private String host;
private List<Random> randoms;
public Register(DatabaseRepository databaseRepo, @Injection("waitting") Map<String, String> playersWaiting, Mail mail, @Injection("issuer") String host){
this.databaseRepo = databaseRepo;
this.playersWaiting = playersWaiting;
this.mail = mail;
this.host = host;
this.randoms = new ArrayList<>();
Random random = new Random();
int randoms = random.nextInt(10)+3;
for(int i = 0; i < randoms; i++) this.randoms.add(new SecureRandom());
try {
Constructor<?> constructor = UUID.class.getDeclaredConstructor(byte[].class);
constructor.setAccessible(true);
this.uuidBuilder = constructor;
} catch (Exception e){
e.printStackTrace();
}
}
@RouteDoc(path = "/register", responseCode = 200, responseDescription = "L'utilisateur est inscrit")
@RouteDoc(responseCode = 403, responseDescription = "L'utilisateur est connecté")
@RouteDoc(responseCode = 400, responseDescription = "Aucune données fournie / données invalide")
@Route(path = "^\\/register$", type = POST)
public void exec(Matcher matcher, Context context, HttpReader reader, HttpWriter writer) throws Exception{
if (context.isLogged()){
context.response(403);
return;
}
JsonMap json = json(reader);
if(!areValids("email")){
context.response(400);
return;
}
String email = json.get("email");
boolean emailAvailable = databaseRepo.checkEmailAvailability(email);
if(emailAvailable){
String code = codeGenerator();
playersWaiting.put(email, code);
mail.send(email, "Welcome @ Peer @ Code", "Your check code is "+code+" !");
context.response(200);
}else{
context.response(400);
JsonMap error = new JsonMap();
error.set("email_valid", emailAvailable);
writer.write(error.toString());
}
}
private Constructor<?> uuidBuilder;
private int[] start = {4, 9, 14, 19};
private String codeGenerator() throws Exception{
Random random = new Random();
Random target = this.randoms.get(random.nextInt(this.randoms.size()));
byte[] arrayOfByte = new byte[16];
target.nextBytes(arrayOfByte);
arrayOfByte[6] = (byte)(arrayOfByte[6] & 0xF);
arrayOfByte[6] = (byte)(arrayOfByte[6] | 0x40);
arrayOfByte[8] = (byte)(arrayOfByte[8] & 0x3F);
arrayOfByte[8] = (byte)(arrayOfByte[8] | 0x80);
String uuid = uuidBuilder.newInstance(arrayOfByte).toString();
target = this.randoms.get(random.nextInt(this.randoms.size()));
int start = this.start[target.nextInt(this.start.length)];
return uuid.substring(start, start+9);
}
}